Paragraph 21 Procedure in cases of unexpected contaminationI1

At any time during construction or operation, in the event that contamination is found that was not expected in the scheme submitted and approved under sub-paragraph (1) of requirement 19, the unexpected contamination must be notified in writing to the relevant planning authority before the end of the following working day.

Within three months of the notification made under sub-paragraph (1) all details required by sub-paragraphs (1) and (4) of requirement 19 must be submitted to the relevant planning authority in respect of the unexpected contamination, and the relevant planning authority must consult with the Environment Agency in respect of those details.

Within three months of the approval by the relevant planning authority of the schemes submitted under sub-paragraph (2), the schemes must be implemented as approved unless otherwise agreed by the relevant planning authority.

Within three months of the implementation of the schemes under sub-paragraph (3) a verification report must be prepared in accordance with the requirements of requirement 20 and submitted to the relevant planning authority for approval after consultation with the Environment Agency.